Multirotate cmd - unknown input parameters

Hello NG team,

In the Netgen mesh generator I found one interesting function called multirotate.
I tried to find a description of the input parameters, but I was not successful.
What are the missing parameters? X, Y, Z coordinates and vector, or axis coordinates?

solid cyls = multirotate ( , , ; , , ;number_of_duplicates;object_for_duplicate);

The example of this function is:

solid cyls = multirotate (0,0,0;0.8,0,0;8;cyl01);

Thank you for your answer.
With Regards,
D Mikro